Nazare Big Wave Challenge Gets Yellow Alert, Could Run Saturday in Giant Waves
70-foot plus waves predicted for Portuguese big wave tow surfing competition.
Surf Forecasts:
Fieldstone surfForecast / Massachusetts / USA
48hr Weather and Surf, issued 12 am Thursday 11 Dec 2025 ESTForecast update in hr min s Forecast update imminent
Fieldstone surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Fieldstone sea temperature is
8.0° C
(Which is normal for this time of year)How big are the waves at Fieldstone today?
The current surf forecast for Fieldstone at 5AM is: 0.3m 5s primary swell from a Southeast direction and 0.1m 8s secondary swell from a East direction (forecast issued at 12:00am December 11). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 0.5ft (0.1m) | 10s |
| Afternoon (11 Dec) | 1.5ft (0.4m) | 10s |
| Evening (11 Dec) | 1.5ft (0.4m) | 10s |
Table - waves today at Fieldstone. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 6 | 5 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 12 | 11 | 11 | 17 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 34 | 16 | 8 | 5 | 4 | 15 | 25 | 27 | 17 | 10 | 10 | 10 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 4 | 6 | 3 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off |
High Tide / height (m) | 4:11AM 3.17 | 4:28PM 3.14 | 5:07AM 3.10 | 5:29PM 2.97 | 6:02AM 3.06 | 6:28PM 2.85 | ||||||||||||||||||
Low Tide / height (m) | 9:52PM 0.45 | 10:19AM 0.77 | 10:47PM 0.63 | 11:20AM 0.84 | 11:42PM 0.78 | 12:20PM 0.86 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:00 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:09 | - | - | - | - | - | - | - | 4:09 | - | - | - | - | - | - | - | 4:10 | - |
 |  |  | |  | | | | |  | | | | | | | | | | |  | | | | |
Rain (mm) | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 7 | 5 | 5 | 3 | -1 | -1 | -2 | -3 | -4 | -4 | -4 | -4 | -3 | -1 | -1 | -2 | -2 | -2 | -2 | -2 | 0 | 3 | 3 | 2 |
| Feels °C (?) | -1 | -2 | -2 | -6 | -11 | -12 | -12 | -13 | -14 | -15 | -15 | -14 | -13 | -11 | -10 | -11 | -10 | -10 | -9 | -9 | -7 | -4 | -4 | -5 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
Buy Less, Surf More This Black Friday
Surf-forecast is providing a free, all-access pass to our premium features and 12-day forecasts all weekend.
Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.
Previously used in our snow jackets for mountain conditions, PrimaLoft® technology is making its debut in the surf industry. The aim is to bring mountain-grade warmth to the waves.
Vancouver Island’s Day Of Days With Reed Platenius
Surf-Forecast recently helped the 21-year-old Canadian pro surfer and adventurer score some cold water perfection at home.
Read more
Discover more articles and updates in the Greenroom.
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Fieldstone surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest